US3450098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doctor for paper-making machine
Assignee: Diamond International Corp
•
Filing: 1968-04-02
•
Granted: 1969-06-17
•
Expires: 1988-04-02
Abstract
No abstract record available.
Inventors
- 👤 Glenn V Williams Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:28
CPC Classifications
D; D21; D21H; D21H25/00; D21H25/08; D21H25/10; B; B05; B05C; B05C11/00; B05C11/02; B05C11/04; D21H5/00; D21H5/0005; D21H5/006; D21H5/0062; D21H5/0065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US668419A
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US1956561A
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US2214787A
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US2237068A
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US2861541A
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US2914788A
Cited
FR1202424A
Cited
US3029779A
Cited
US3143438A
Cited
US3131092A
Cited
US3358643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |